PLEASE NOTE: Since plants are often sourced from the garden to order, sizes do vary a little, depending on how they come out of the ground, but I always endeavour to give a little more rather than less! They are sometimes shipped bare-rooted, but will approximate the size specified (e.g. a 9cm pot).

Helianthemum nummularium
Common rock-rose
Type/Hardiness Herbaceous, Perennial, Hardy
Flowering period
Height 12-18in/30-45cm
Light preference Sun
Soil preference Well-drained
Sowing time/depth Spring, Autumn, Surface
Loved by bees and butterflies, this diminutive shrub has tiny, narrow, dark-green leaves which are topped with masses of small, bright yellow flowers in summer.
Sowing and/or growing instructions
Although very small, the seeds of the rock rose have a very hard seedcoat and germination can be slow and erratic. Spring-sown seeds (under glass) are best lightly scarified, which can be done between two sheets of fine sandpaper. However, early-autumn sowings in a cold frame may be a better option, so that microbial activity over several months can help break down the seedcoat, for germination in spring. In either case, sow thinly on the surface of good quality compost, covering with a sprinkling of sieved compost or fine vermiculite, growing on seedlings in individual pots or modules and planting out well-drained soil when large enough.
Seed
1 packet - 100 seeds approx. £2.15

Plant
1 x plant (9cm pot) £3.95

Only two available!
Latest additions to Norfolk Cottage Garden Seeds & Plants
Iris germanica, White Meconopsis cambrica 'Frances Perry' Papaver sominferum, true red Symphytum orientale Origanum vulgare
Iris germanica, White Meconopsis cambrica 'Frances Perry' Papaver sominferum, true red Symphytum orientale Origanum vulgare  
Norfolk Cottage Garden - Free Seeds!
Choose a packet of seeds from the three varieties below and it will be added to your order absolutely FREE!
 Nicotiana langsdorfii
Nicotiana 'Lime Green'
 Agrostis nebulosa
Agrostis nebulosa
 Nicandra physalodes
Nicandra physalodes Shoo-fly plant

There are 0 items in your trug

SEARCH

SEEDS & PLANTS : ALPHABETICAL

SEEDS & PLANTS BY TYPE
Annuals/Biennials
Perennials
Wildflowers
Ornamental grasses
Vegetables, fruit and herbs
Wildlife friendly
Climbers
Trees and shrubs
Plants

SEEDS & PLANTS BY COLOUR
Green
White
Cream
Yellow
Orange
Red/Pink
Purple
Blue
Black
Mixed

GREETINGS CARDS & GIFT TOKENS
GIFT SHOP